Wrench.



H. GHRISTOPHERSON.

WRENCH. APPLICATION FILED JULY 3, 1908.

Patented Dec. 15, 1908,

FIG. 2.

WITNESSES.

INVENJ'OR. 3%. W

UNITED STATES PATENT OFFICE.

HALVOR CHRISTOPHERSON, OF KIDDER, SOUTH DAKOTA.

WRENCH.

To all whom it may concern:

Be it known that I, I-IALvon Crnus'rornnnsoN a citizen of the UnitedStates, residing at Kidder, in the county of Marshall and State of SouthDakota, have invented a new and useful WVrench, of which the followingis a specification.

My invention relates to wrenches of the class known as alligatorwrenches; and the object is to provide a wrench of said class in whichthe angle of the V-shaped gap may be changed and the gap enlarged orreduced. This object I attain by the construction and arrangement ofparts illustrated in the accompanying drawing, in which Figure 1 is apartly sectional view of my improved wrench with the portion a-a in Fig.2 broken away from the upper jaw. Fig. 2 is a top view of Fig. 1 withall parts intact.

Referring to the drawing by reference numerals, 1 designates the handleof the wrench and from its front end extends a fixed toothed jaw 2 and aflat guiding rib 3. Straddling said rib so as to be guided by it andpivoted at at thereto is a similar jaw 5 having ratchet teeth 6 inclinedin reverse direction of the teeth 7 of the fixed jaw. In a slot 8 in thefixed jaw is pivoted at 9 an arched ratchet toothed rack 10 whose teeth11 are adapted to engage teeth 12 in the front terminus 13 of the gap iswhich separates the rear arms 15 of the pivoted jaw and straddles therib 3. In said gap let is pivoted at 16 a cam 17 having a finger lever18 by which it may be turned so as to hold the rack in mesh with theteeth of the jaw Specification of Letters Patent.

Application filed. July 3, 1908.

Patented Dec. 15, 1908.

Serial No. 441,833.

or permit its disengagement therefrom while the jaws are being regulatedto the desired width from each other.

At 19 is shown a nut and at 20 a pipe as engaged by the jaws of thewrench.

From the above description it will be understood that incontradistinction to alligator wrenches with the jaws integral, the adjustability of my wrench enables its size to be ei'ilarged for turningpipes and nuts of much larger sizes than an integral wrench of the samesize would do, and if the pipe or nut is not wry large but requires anextra tight grip to be turned, then such grip or hold is secured byclosing the jaws in be yond the normal position.

hat I claim is:

An alligator wrench comprising a handle, a jaw fixed at the front endthereof and having a toothed face, another jaw pivoted to the handle andhaving a toothed face standing normally at an acute angle to the firstmentioned face and means for holding the pivoted jaw at various inclinesto the fixed j aw, said means consisting of a ratchet toothed rackpivoted with one end to one of the jaws and teeth on the other jaw forthe rack teeth to engage and a cam lever pivoted to said other jaw forholding the rack engaged with said teeth when the wrench is in use.

In testimony whereof I attix my signature, in presence of two witnesses.

HALVOR CHRISTOPHERSON.

itnesses O. HARLEN, CARL J. Moi-IN.

